Results 111 to 120 of about 7,154 (300)
Remarks on the finite derived set property
Applied General Topology, 2005 The finite derived set property asserts that any infinite subset of a space has an infinite subset with only finitely many accumulation points. Among other things, we study this property in the case of a function space with the topology of pointwise ...
Angelo Bella
doaj +1 more source
Pointwise Convergence of Double Trigonometric Series
Journal of Mathematical Analysis and Applications, 1993 The problem of finding sufficient Tauberian conditions imposed on the finite order differences of the coefficients of a double trigonometric series, under which convergence in Pringsheim's sense follows from Cesàro summability was first studied by \textit{D. Waterman} and the reviewer [J. Math. Anal. Appl. 140, No.
Chen, C.P., Hsieh, P.H.
openaire +2 more sources
On the Brezis–Lieb lemma without pointwise convergence [PDF]
, 2015 Brezis–Lieb lemma is an improvement of Fatou Lemma that evaluates the gap between the integral of a functional sequence and the integral of its pointwise limit.
Tintarev, Cyril +3 more
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NowPrecip 2: Precipitation nowcasting in the complex terrain of Switzerland. Part I: Methods
Quarterly Journal of the Royal Meteorological Society, EarlyView.In this work we present the methods of the areal precipitation nowcasting system NowPrecip version 2. In this version a new methodology is introduced, which, although it shares philosophy and techniques with the original methodology of NowPrecip version 1, can be considered as distinct from that.
I. V. Sideris +7 more
wiley +1 more source
Transition Modeling and Econometric Convergence Tests [PDF]
A new panel data model is proposed to represent the behavior of economies in transition allowing for a wide range of possible time paths and individual heterogeneity.
Peter C.B. Phillips, Donggyu Sul
core
Hybrid physics–data‐driven modeling for sea ice thermodynamics and transfer learning
Quarterly Journal of the Royal Meteorological Society, EarlyView.Icepack–NN, a machine‐learning‐based hybrid version of the sea‐ice column model Icepack, is developed to correct state‐dependent forecast errors arising from misspecified snow thermodynamics, using neural networks applied online within the physical model.
G. De Cillis +7 more
wiley +1 more source
Forecast‐Error Diagnostics in Neural Weather Models
Quarterly Journal of the Royal Meteorological Society, EarlyView.Deep learning weather prediction models enable efficient forecast‐error diagnostics through auto‐differentiation and low computational cost. We apply grid‐point relaxation and gradient‐based error sensitivity to identify key forecast‐error sources. Results show that medium‐range forecasts in the midlatitudes benefit most from relaxing the stratosphere ...
Uroš Perkan +2 more
wiley +1 more source
Pointwise convergence of the non-linear Fourier transform [PDF]
, 2023 We prove pointwise convergence for the scattering data of a Dirac system of differential equations. Equivalently, we prove an analog of Carleson's theorem on almost everywhere convergence of Fourier series for a version of the non-linear Fourier ...
Poltoratski, Alexei
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Adaptive Sliding‐Mode Control of a Perturbed Diffusion Process With Pointwise In‐Domain Actuation
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT A sliding mode–based adaptive control law is proposed for a class of diffusion processes featuring a spatially‐varying uncertain diffusivity and equipped with several point‐wise actuators located at the two boundaries of the spatial domain as well as in its interior.
Paul Mayr +3 more
wiley +1 more source
Қарағанды университетінің хабаршысы. Математика сериясыIn this study, we introduced a non-polynomial spline technique to address singularly perturbed differential difference equations involving both delay and advanced parameters.
A.M. Regal, S.D. Kumar
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